Station d epuration Wastewater Treatment Plant, L'Ange-Gardien, Quebec

Station d epuration is a municipal wastewater treatment facility located in L'Ange-Gardien, a municipality in the La Côte-de-Beaupré region of Quebec, Canada. The plant serves a population of about 7,500 residents and is situated near the Saint Lawrence River, within 50 km of the Atlantic coast. It operates under Canada's federal and provincial wastewater regulations, which require secondary treatment for most municipal discharges. As a plant serving a medium-sized agglomeration, Station d epuration is expected to meet effluent quality standards set by Environment Canada and the Quebec Ministry of the Environment. The facility's designed capacity is 1.00 (likely in million liters per day or similar unit), indicating it is sized to handle the community's wastewater flow. Treatment processes typically include primary and secondary stages to reduce organic matter and suspended solids before discharge. The plant's treated effluent is discharged into the Saint Lawrence River system, which flows northeast into the Gulf of Saint Lawrence and ultimately the Atlantic Ocean. The Saint Lawrence River is a major ecological corridor supporting diverse aquatic life, including fish species such as Atlantic salmon and sturgeon, as well as migratory birds. The plant plays a key role in protecting water quality in this sensitive estuarine environment.

The plant discharges into the Saint Lawrence River, a major waterway that drains the Great Lakes basin and flows into the Gulf of Saint Lawrence. This estuary is ecologically sensitive, supporting diverse aquatic habitats including spawning grounds for fish and feeding areas for marine mammals. The downstream environment includes the Saint Lawrence Estuary, which is a critical migratory corridor for birds and a productive ecosystem for phytoplankton and zooplankton. Protecting water quality in this region is essential for maintaining biodiversity and supporting local fisheries.